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Different Radii Discs
# 1J40.25

Description: This apparatus rotates freely. There are 3 disks with different radii so that masses can be hung to create different torques. There are also 4 adjustable masses on spokes to change the moment of inertia.

Hazards: None

Parts: Rotating apparatus described plus string and hanging masses.

Purchased/Built: purchased

Setup Time: 10 min

Quant. in Demo Room: 1

Source: Arbor Scientific

Demo References
The Video Encyclopedia of Physics Demonstrations Disc 04-13 Use a wheel with coaxial pulleys of 5, 10, 15, and 20 cm to show static equilibrium of combinations of weights at various radii.
Freier and Anderson Mo-2 Weights can be hung from many points on a vertical disc pivoted at the center.
Sutton M-28 Various weights are hung from a board that can rotate freely in the vertical plane.

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